package net.bwie.realtime.jtp.dws.log.function;


import net.bwie.realtime.jtp.dws.log.bean.PageViewBean;
import org.apache.commons.lang3.time.FastDateFormat;
import org.apache.flink.streaming.api.functions.windowing.WindowFunction;
import org.apache.flink.streaming.api.windowing.windows.TimeWindow;
import org.apache.flink.util.Collector;

public class PageViewWindowFunction implements WindowFunction<PageViewBean, String, String, TimeWindow> {
    //1.定义时间格式
    private FastDateFormat format = FastDateFormat.getInstance("yyyy-MM-dd HH:mm:ss");
    @Override
    public void apply(String key, TimeWindow window, Iterable<PageViewBean> input, Collector<String> out) throws Exception {
        String windowStartTime = format.format(window.getStart());
        String windowEndTime = format.format(window.getEnd());
        Long pvCount = 0L;
        Long pvDuringTime = 0L;
        Long uvCount = 0L;
        Long sessionCount = 0L;
        for (PageViewBean pageviewbean : input) {
            pvCount += pageviewbean.getPvCount();
            pvDuringTime += pageviewbean.getPvDuringTime();
            uvCount += pageviewbean.getUvCount();
            sessionCount += pageviewbean.getSessionCount();
        }
        String output=windowStartTime+","+windowEndTime+","
                +key+","+pvCount+","+pvDuringTime+","+uvCount+","
                +sessionCount+','+System.currentTimeMillis();
        out.collect(output);
    }
}
